I came across a very beautiful gnuradio/USRP usage for intentional
signal
aliasing application. The authors used USRP2 with its 25MHz digitizing
capability to analyze the full bluetooth 79MHz wide channels by removing
the
RFX2400 anti-aliasing filter and disabling the FPGA HBF when working
with
decimation of 4.

Download GR-Bluetooth for free. An implementation of the Bluetooth baseband layer for GNU Radio for experimentation and teaching students about Software Defined Radio, it should not be used for Bluetooth communications as it is not a complete...